Resolve 3301 compiler warnings

2dlib/gr.h

@@ -352,7 +352,7 @@ class grSurface {
 //		this is a software bitmap not video driver dependant
 //	----------------------------------------------------------------------------
 
-class grMemorySurface : public grSurface {
+class grMemorySurface final : public grSurface {
   bool m_FirstTimeInit; // do special stuff if we are initializing for first time
   bool m_AllowInit;     // we only allow initialization if we didn't create it.
 
@@ -375,11 +375,11 @@ class grMemorySurface : public grSurface {
 //		this is a hardware bitmap allocated from the video driver
 //	----------------------------------------------------------------------------
 
-class grHardwareSurface : public grSurface {
+class grHardwareSurface final : public grSurface {
 public:
-  grHardwareSurface();
+  grHardwareSurface() = default;
   grHardwareSurface(int w, int h, int bpp, unsigned flags = 0, const char *name = NULL);
-  virtual ~grHardwareSurface();
+  virtual ~grHardwareSurface() = default;
 
   bool create(int w, int h, int bpp, unsigned flags = 0, const char *name = NULL);
 };
@@ -390,12 +390,12 @@ class grHardwareSurface : public grSurface {
 //		is used by the grViewport class to draw onto the screen
 //	----------------------------------------------------------------------------
 
-class grScreen : public grSurface {
+class grScreen final : public grSurface {
   friend class grViewport;
 
 public:
   grScreen(int w, int h, int bpp, const char *name = NULL);
-  virtual ~grScreen();
+  virtual ~grScreen() = default;
 
   void flip();
 };

2dlib/hardsurf.cpp

@@ -42,13 +42,9 @@
 //	constructor and destructor
 //	----------------------------------------------------------------------------
 
-grHardwareSurface::grHardwareSurface() : grSurface() {}
-
 grHardwareSurface::grHardwareSurface(int w, int h, int bpp, unsigned flags, const char *name)
     : grSurface(w, h, bpp, SURFTYPE_GENERIC, flags, name) {}
 
-grHardwareSurface::~grHardwareSurface() {}
-
 //	----------------------------------------------------------------------------
 //	initialize a hardware surface with these values
 //	----------------------------------------------------------------------------

2dlib/memsurf.cpp

@@ -140,8 +140,6 @@
 //	internal functions
 //	---------------------------------------------------------------------------
 
-static mem_bitmap grMemSurf_object;
-
 bool gr_bm_mem_Blt16(ddgr_surface *dsf, int dx, int dy, ddgr_surface *ssf, int sx, int sy, int sw, int sh);
 bool gr_bm_mem_Blt16ck(ddgr_surface *dsf, int dx, int dy, ddgr_surface *ssf, int sx, int sy, int sw, int sh);
 
@@ -267,7 +265,7 @@
 bool gr_mem_surf_Blt(ddgr_surface *dsf, int dx, int dy, ddgr_surface *ssf, int sx, int sy, int sw, int sh) {
   //	Maybe we should allow slow 16bpp to 24bpp and vice-versa blts.
   //	for now, we wont.
   mem_bitmap *sbm = (mem_bitmap *)ssf->obj, *dbm = (mem_bitmap *)dsf->obj;
 
   ASSERT(dbm->bpp == sbm->bpp);
 

2dlib/pentext.cpp

@@ -96,7 +96,6 @@
 
 #define STR_BUF_SIZE 512
 static char Str_buf[STR_BUF_SIZE];      // String buffer for variable arguments
-static char Draw_str_buf[STR_BUF_SIZE]; // used to buffer words in a string
 
 //	---------------------------------------------------------------------------
 //	Viewport font and text funcitons
@@ -340,17 +339,17 @@
           supports bitmap fonts or color(alpha) mapped fonts.
   */
   cur_x = x;
   for (i = 0; i < (int)strlen(str); i++) {
     uint8_t ch;
 
     ch = (uint8_t)str[i];
 
     if (ch == GR_COLOR_CHAR) {
       if ((i + 3) >= (int)strlen(str))
         Int3(); // This shouldn't happen!  bad string!
       set_text_color(GR_RGB(str[i + 1], str[i + 2], str[i + 3]));
       i += 4;
       if (i >= (int)strlen(str))
         Int3(); // This shouldn't happen too.
       ch = (uint8_t)str[i];
     } else if (ch == '\t') { // tab char

2dlib/screen.cpp

@@ -56,8 +56,6 @@
 grScreen::grScreen(int w, int h, int bpp, const char *name)
     : grSurface(w, h, bpp, SURFTYPE_VIDEOSCREEN, SURFFLAG_BACKBUFFER, name) {}
 
-grScreen::~grScreen() {}
-
 //	---------------------------------------------------------------------------
 //	screen refresh routines
 //	---------------------------------------------------------------------------

AudioEncode/adecode.cpp

@@ -23,7 +23,7 @@ using namespace AudioDecoder;
 
 namespace {
 
-class InternalAudioDecoder : public IAudioDecoder {
+class InternalAudioDecoder final : public IAudioDecoder {
 public:
   InternalAudioDecoder(ReadDataFunction readerFunction, void *pReaderData);
   ~InternalAudioDecoder();

AudioEncode/adecode.h

@@ -25,7 +25,7 @@ namespace AudioDecoder {
 
 class IAudioDecoder {
 public:
-  virtual ~IAudioDecoder() {}
+  virtual ~IAudioDecoder() = default;
 
   // Read data from the audio decoder.
   //   pBuffer: The buffer to receive the data from

Descent3/AIGoal.cpp

@@ -868,7 +868,6 @@ void GoalClearAll(object *obj) {
 int GoalAllocSlot(object *obj, int level, float influence) {
   float lowest_influence_slot = -1.0;
   float lowest_influence = MAX_INFLUENCE + 1.0;
-  int alloc_slot = AI_INVALID_INDEX;
   ai_frame *ai_info = obj->ai_info;
   int cur_slot;
 
@@ -1421,8 +1420,6 @@ bool GoalIsGoalEnabled(object *obj, int goal_index) {
     if (cur_goal->flags & GF_OBJ_IS_TARGET) {
       gobj = ObjGet(obj->ai_info->target_handle);
     } else if (cur_goal->flags & (GF_OBJS_ARE_SPECIES | GF_OBJS_ARE_ENEMIES | GF_OBJS_ARE_FRIENDS)) {
-      bool done = false;
-
       if (cur_goal->flags & (GF_OBJS_ARE_SPECIES | GF_OBJS_ARE_FRIENDS)) {
         // chrishack -- not done
       }

Descent3/AImain.cpp

@@ -1804,7 +1804,6 @@ bool move_relative_object_vec(object *obj, vector *vec, object *target, float ci
   vector from_target;
   vector opposite_fvec;
   vector goal_pos;
-  ai_frame *ai_info = obj->ai_info;
   bool f_done = false;
 
   from_target = obj->pos - target->pos;
@@ -2862,8 +2861,7 @@ void AISeeTarget(object *obj, bool f_see) {
 
   // Note:  Player position is also updated in the visibility test function
   //        for MIN_VIS_RECENT_CHECK_INTERVAL seconds
-  object *targetptr;
-  object *other_obj = targetptr = ObjGet(ai_info->target_handle);
+  object *targetptr = ObjGet(ai_info->target_handle);
 
   if (targetptr) {
     if (f_see)
@@ -4533,7 +4531,6 @@ void ai_move(object *obj) {
   bool f_dodge = false; // Are there any dodge goals
   bool f_avoid = false; // Are there any avoid goals
   int highest_influence_goal = -1;
-  float highest_influence = 0.0f;
   float highest_speed = 0.0f;
   bool f_turned = true;
   bool f_goal_found = false;
@@ -4814,8 +4811,6 @@ void ai_move(object *obj) {
                 bool f_orient = AITurnTowardsMatrix(obj, obj->ai_info->max_turn_rate, &orient);
 
                 if (f_at_pos && f_orient) {
-                  int goal_index = cur_goal - ai_info->goals;
-
                   if (cur_goal->type == AIG_PLACE_OBJ_ON_OBJ) {
                     UnattachFromParent(child_obj);
                     AttachObject(g_obj, c_ap, child_obj, p_ap, true);
@@ -4850,8 +4845,6 @@ void ai_move(object *obj) {
                 }
 
                 if (f_at_pos) {
-                  int goal_index = cur_goal - ai_info->goals;
-
                   AttachObject(obj, p_ap, g_obj, rad);
 
                   if (cur_goal->g_info.attach_info.flags & GAF_TEMP_CLEAR_ROBOT_COLLISIONS) {

Descent3/BOA.cpp

@@ -1332,7 +1332,6 @@ void ValidateRoomPathPoint(int room, char *message, int len) {
   if (IsPathPointValid(room, &pos))
     return;
 
-  bool f_found = false;
   // vector best_pnt;
   // float best_distance;
 

Descent3/BriefingParse.cpp

@@ -73,29 +73,6 @@
 #include "pserror.h"
 #include "voice.h"
 
-//	constructor
-CBriefParse::CBriefParse() {
-  AddTextEffect = NULL;
-  AddBmpEffect = NULL;
-  AddMovieEffect = NULL;
-  AddBkgEffect = NULL;
-  AddPolyEffect = NULL;
-  AddSoundEffect = NULL;
-  AddButtonEffect = NULL;
-  StartScreen = NULL;
-  EndScreen = NULL;
-  LoopCallback = NULL;
-  SetTitle = NULL;
-  SetStatic = NULL;
-  SetGlitch = NULL;
-  AddVoice = NULL;
-  linenum = 0;
-  parse_error = false;
-}
-
-//	destructor
-CBriefParse::~CBriefParse() {}
-
 //	SetCallbacks
 //
 //	Registers (or changes) the callbacks of the class
@@ -298,7 +275,6 @@ static int ReadFullLine(char **data, CFILE *ifile) {
 //	Parses the briefing file (calling the callbacks throughout), check return code
 int CBriefParse::ParseBriefing(const char *filename) {
   CFILE *ifile;
-  bool retvalue = false;
   bool voice_def_screen = false;
   char text_buf[8192], *text_ptr = NULL;
   bool abort = 0;
@@ -308,7 +284,6 @@ int CBriefParse::ParseBriefing(const char *filename) {
   int beffect = bfxNONE;
   int x = 0, y = 0;
   char filen[40];
-  bool emergency_exit = false;
 
   // the following block of 'globals' are for when parsing a text block, the information is stored
   // here until a $endtext is hit

Descent3/BriefingParse.h

@@ -85,26 +85,24 @@ struct tTextBufferDesc {
 
 class CBriefParse {
 public:
-  CBriefParse();
-  ~CBriefParse();
   void SetCallbacks(tBriefParseCallbacks *cb);
   int ParseBriefing(const char *filename);
 
 private:
-  void (*AddTextEffect)(TCTEXTDESC* desc, char *text, char *description, int id);
-  void (*AddBmpEffect)(TCBMPDESC* desc, char *description);
-  void (*AddMovieEffect)(TCMOVIEDESC* desc, char *description);
-  void (*AddBkgEffect)(TCBKGDESC* desc, char *description);
-  void (*AddPolyEffect)(TCPOLYDESC* desc, char *description);
-  void (*AddSoundEffect)(TCSNDDESC* desc, char *description);
-  void (*AddButtonEffect)(TCBUTTONDESC* desc, char *description, int id);
-  void (*StartScreen)(int screen_num, char *desc, char *layout, uint32_t mask_set, uint32_t mask_unset);
-  void (*EndScreen)();
-  bool (*LoopCallback)();
-  void (*SetTitle)(char *title);
-  void (*SetStatic)(float amount);
-  void (*SetGlitch)(float amount);
-  void (*AddVoice)(char *filename, int flags, char *description);
+  void (*AddTextEffect)(TCTEXTDESC* desc, char *text, char *description, int id) = nullptr;
+  void (*AddBmpEffect)(TCBMPDESC* desc, char *description) = nullptr;
+  void (*AddMovieEffect)(TCMOVIEDESC* desc, char *description) = nullptr;
+  void (*AddBkgEffect)(TCBKGDESC* desc, char *description) = nullptr;
+  void (*AddPolyEffect)(TCPOLYDESC* desc, char *description) = nullptr;
+  void (*AddSoundEffect)(TCSNDDESC* desc, char *description) = nullptr;
+  void (*AddButtonEffect)(TCBUTTONDESC* desc, char *description, int id) = nullptr;
+  void (*StartScreen)(int screen_num, char *desc, char *layout, uint32_t mask_set, uint32_t mask_unset) = nullptr;
+  void (*EndScreen)() = nullptr;
+  bool (*LoopCallback)() = nullptr;
+  void (*SetTitle)(char *title) = nullptr;
+  void (*SetStatic)(float amount) = nullptr;
+  void (*SetGlitch)(float amount) = nullptr;
+  void (*AddVoice)(char *filename, int flags, char *description) = nullptr;
 
   void ParseError(const char *msg, const char *p = NULL);
   const char *ParseComma(const char *p);
@@ -117,8 +115,8 @@ class CBriefParse {
   bool ParseButtonEffect(const char *p);
   bool ParseTextEffect(const char *p, tTextBufferDesc *tbd);
 
-  int linenum;
-  bool parse_error;
+  int linenum = 0;
+  bool parse_error = false;
 };
 
 #endif

Descent3/Controls.cpp

@@ -452,9 +452,7 @@ bool Control_poll_flag = false; // determines if system is polling controls now.
 static bool Control_system_init = false;
 static float Control_interval_time = 0.0f;
 static float Control_current_time;
-static float Control_frametime;
-static float Key_pitch_ramp_time = 0.0f;
-static float Key_heading_ramp_time = 0.0f;
+// static float Control_frametime;
 
 static tSensitivity Key_ramp;
 

Descent3/Game2DLL.cpp

@@ -592,7 +592,7 @@ bool InitGameModule(const char *name, module *mod) {
   // Clear out error queue
   mod_GetLastError();
   if (!mod_LoadModule(mod, tmp_dll_name)) {
-    int err = mod_GetLastError();
+    mod_GetLastError();
     LOG_WARNING.printf("You are missing the DLL %s!", name);
     return false;
   }
@@ -640,7 +640,7 @@ int LoadGameDLL(const char *name, int num_teams_to_use) {
   mod_GetLastError();
   DLLGameInit = (DLLGameInit_fp)mod_GetSymbol(&GameDLLHandle, "DLLGameInit", 12);
   if (!DLLGameInit) {
-    int err = mod_GetLastError();
+    mod_GetLastError();
     LOG_FATAL << "Couldn't get a handle to the dll function DLLGameInit!";
     Int3();
     FreeGameDLL();
@@ -650,7 +650,7 @@ int LoadGameDLL(const char *name, int num_teams_to_use) {
   mod_GetLastError();
   DLLGameCall = (DLLGameCall_fp)mod_GetSymbol(&GameDLLHandle, "DLLGameCall", 8);
   if (!DLLGameCall) {
-    int err = mod_GetLastError();
+    mod_GetLastError();
     LOG_FATAL << "Couldn't get a handle to the dll function DLLGameCall!";
     Int3();
     FreeGameDLL();
@@ -660,7 +660,7 @@ int LoadGameDLL(const char *name, int num_teams_to_use) {
   mod_GetLastError();
   DLLGameClose = (DLLGameClose_fp)mod_GetSymbol(&GameDLLHandle, "DLLGameClose", 0);
   if (!DLLGameClose) {
-    int err = mod_GetLastError();
+    mod_GetLastError();
     LOG_FATAL << "Couldn't get a handle to the dll function DLLGameClose!";
     Int3();
     FreeGameDLL();
@@ -670,7 +670,7 @@ int LoadGameDLL(const char *name, int num_teams_to_use) {
   mod_GetLastError();
   DLLGetGameInfo = (DLLGetGameInfo_fp)mod_GetSymbol(&GameDLLHandle, "DLLGetGameInfo", 4);
   if (!DLLGetGameInfo) {
-    int err = mod_GetLastError();
+    mod_GetLastError();
     LOG_FATAL << "Couldn't get a handle to the dll function DLLGetGameInfo!";
     Int3();
     FreeGameDLL();
@@ -753,7 +753,7 @@ bool GetDLLGameInfo(const char *name, tDLLOptions *options) {
   mod_GetLastError();
   modGetGameInfo = (DLLGetGameInfo_fp)mod_GetSymbol(&mod, "DLLGetGameInfo", 4);
   if (!modGetGameInfo) {
-    int err = mod_GetLastError();
+    mod_GetLastError();
     LOG_FATAL << "Couldn't get a handle to the dll function DLLGetGameInfo!";
     Int3();
     CloseGameModule(&mod);

Descent3/Inventory.cpp

@@ -417,7 +417,7 @@ bool Inventory::AddObject(int object_handle, int flags, const char *description)
 
   ASSERT(obj->type == OBJ_BUILDING || obj->type == OBJ_ROBOT || obj->type == OBJ_POWERUP || obj->type == OBJ_CLUTTER);
 
-  inven_item *current = root, *prev = root, *newnode;
+  inven_item *prev = root, *newnode;
 
   if (count == 0) {
     // there are no items in the list...time to add
@@ -531,7 +531,7 @@ bool Inventory::AddCounterMeasure(int id, int aux_type, int aux_id, int flags, c
     return false;
   }
 
-  inven_item *current = root, *prev = root, *newnode;
+  inven_item *prev = root, *newnode;
 
   if (count == 0) {
     // there are no items in the list...time to add
@@ -606,7 +606,7 @@ bool Inventory::AddObjectItem(int otype, int oid, int oauxt, int oauxi, int flag
   if (count >= MAX_UNIQUE_INVEN_ITEMS)
     return false;
 
-  inven_item *current = root, *prev = root, *newnode;
+  inven_item *prev = root, *newnode;
 
   if (count == 0) {
     // there are no items in the list...time to add

Descent3/LoadLevel.cpp

@@ -3686,13 +3686,11 @@ extern bool Disable_editor_rendering;
 // Returns 1 if file read ok, else 0
 int LoadLevel(char *filename, void (*cb_fn)(const char *, int, int)) {
   CFILE *ifile;
-  char tag[4];
   int n, i, retval = 1;
 
   int version;
   bool f_read_AABB = false;
   bool no_128s = true;
-  int total = 0;
 #ifdef EDITOR
   Disable_editor_rendering = 1;
   Num_failed_xlate_items = 0;

Descent3/Mission.cpp

@@ -1197,7 +1197,6 @@ bool LoadMission(const char *mssn) {
 
 void FreeMission() {
   //	Free up mission script
-  int i; //,j;
   // close MN3 file if there is one.
   mn3_Close();
   // Tell Osiris to shutdown the Osiris Mission Memory System, freeing all memory
@@ -1265,7 +1264,6 @@ bool LoadMissionLevel(int level) {
   }
   // Test to see if levels are valid
   bool boa = true, terrain = true;
-  char str[255];
 
   if (BOAGetMineChecksum() != BOA_vis_checksum)
     boa = false;

Descent3/ObjInit.cpp

@@ -1054,8 +1054,6 @@ int ObjInitFireball(object *objp) {
 }
 int ObjInitMarker(object *objp) {
   int ret = 1;
-  static int first = 1;
-  static int polynum = -1;
   ASSERT(objp->type == OBJ_MARKER);
   // Set size & shields
   objp->shields = 100;